Receiving-box for metal-scrap-compressing machines.



' J. DUNN.

RECEIVING BOX FOR METAL SCRAP GOMPRESSING MACHINES.

APPLICATION FILED DEC. 4, 1909. 1,033,091 Patented July 23, 1912.

2 SHEBTS-SHEBT 1.

INVENTOR $2 BY ATToRNEYs WITNESSES? Q96 COLUMBIA PLANOGRAPH Co.,WASHINGTON, D. c.

J. DUNN.

RECEIVING BOX FOR METAL SCRAP GOMPRESSING MACHINES.

APPLICATION FILED DEG. 4, 1909.

1 ,O33,091 Patented July 23, 1912.

2 SHEETS-SHEET 2.

UNITED STATES PATENT oFFIoE.

JOHN DUNN, OF STREATOR, ILLINOIS, ASSIGNOR TO THE VULCAN DETINNINGi COM-PANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY RECEIVING-BOX FORMETAL-SCRAP-COMPRESSING MACHINES.

To all whom it may concern:

Be it known that I, JOHN DUNN, a citizen of the United States, residingat Streator, in the county of Lasalle and State of Illinois, haveinvented certain new and useful Improvements in Receiving Boxes forMetal Scrap Compressing Machines; and I do hereby declare the followingto be a full, clear, and exact desoription'of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

The invention relates to machines for compressing metal scraps, as, forexample, the detinned scraps in a detinning plant.

Machines of the character to which the invention is applied, aredisclosed in United States Patents to Laernoes and Dunn, Nos. 737,424and 7 37 ,425, of August 25, 1903.

The object of the invention is to improve the construction of thereceiving boxes in which the scrap is compressed in such machines.

In the drawings, Figure 1 shows one of the boxes in its assembled formin elevation, and Fig. 2 is a section on the line 22 of Fig. 1; Fig. 3is a top plan view; Fig. 4 is a vertical central section; Fig. 5 is atop plan view of the lower terminal section or base box of one of thereceiving boxes; and Fig. 6 is a section on the line 66 of Fig. 4.

It will be observedthat the receiving box is made up of a lower terminalportion or base box A and an upper portion B resting upon the base box.The base box has preferably a circular outline (so that it may fitwithin a carrier ring which forms part of the compressing machine) andis built up of three heavy, strong iron or steel rings 1, 2 and 3,shrunk upon a lining 4. The lower ring 3 is shouldered internally asbest illustrated in Fig. 4 to receive the lining 4 of the base box andhold it slightly above the lower face of the ring, so that the liningitself does not bear upon the surface on which the receiving box rests.The lining member 4 is preferably made of two complementary piecesofchilled steel, having, when fitted together, as in Fig. 2, a circularoutline, and inclosing a rectangular central chamber slightly flaringtoward its lower end, whereby there is imparted to the compressed blockof scraps a tapering shape which facilitates its ejection. The upperring 1 carries four flanges 5 overhanging the Specification of LettersPatent.

Application filed December 4, 1909.

Patented July 23, 1912.

Serial No. 531,352.

lining 4 and forming a square into which the lower square end of theupper portion of the receiving box fits. This upper portion preferablycomprises two metal castings 6 fastened together, as illustrated, bystrong bolts 7 passing through heavy ears 8 cast integral with the parts6, and this upper portion is strengthened progressively toward its lowerend by gradually thickening the walls, as shown in Fig. 4, and byintegral flanges 9, the bottom flange being a sufficient distanceabovethe lower end to permit the fitting of this end into the flanges 5on top of the base box. It is intended that these boxes shall be used ina series, arranged in a circle, and to facilitate this, it is convenientto form the upper end of the box into a flaring flattened portion orapron 10 surrounding the top opening and having upstanding rims 11 andBen the inside and outside respectively, the two rims conforming to twoconcentric circles, so that when the tops of the boxes are joined byintermediate segmental plates there is formed a continuous annular deckat a convenient level to permit the operators to fill the boxes with themetal scrap.

The customary mode of operation of such machines is to fill the box withthe metal scrap and thereupon to deliver to the scrap a series of blowsby means of a plunger fitting closely within the receiving box, asuflicient number of blows being given by the plunger to thoroughlycompact the scrap. Thus, in the machine in which the receiving boxes arefive feet deep, for example, it will usually take not more than three orfour blows of the plunger to compress the scrap, the first, or the firstand second blows, will compress the scrap well down into the receivingbox to about the level of the joint between the upper portion of thereceiving box and the base box, and two more blows will usually compactthe scrap into a solid block about six inches thick in the very bottomof the base box. It will readily be seen how necessary it is that thelower portion of the receiving box should have great strength towithstand the pressure of such blows; and the advantage of the flaringsides of the bottom portion of the base box will also be appreciated,since they permit the compacted block to be ejected from the box by acomparatively slight blow.

By building up the receiving box in the manner described, with the lowerterminal portion or base-box A and the upper castings B, increasing inthickness and flanged toward the bottom, it is possible to get therequisite strength for the upper portion at comparatively littleexpense, and to provide at the very bottom portion of the box aconstruction having a resisting power which far exceeds that of thecasting and permits theuse of material which would be unduly expensiveit applied to the upper portion.

\Vhat I claim 1. A receiving box for scrap-metal. compressing machines,comprising a strong, heavy, metal base-box and an upper box portion inalinement with and fitted into the base-box; substantially as described.

2. A receiving box for so ap-metal compressing machines, comprising astrong, heavy, metal base-box consisting of a metal lining bound andcompletely enveloped by metal rings, and an upper box portion inalinement with and fitted into the base-box; substantially as described.

3. A receiving box for scrap-metal com pressing machines, comprising astrong, heavy, metal base-box consisting of a chilled steel lining boundby metal rings shrunk onto the lining, and an upper box portion inalinement with and fitted into the basebox; substantially as described.

1-. A receiving box for metal-scrap conipressing machine having a liningwith smooth interior walls, and a ring closely fitted around theexterior of the lining and adapted to support the bottom thereof abovethe bottom of the ring and to supplement the strength of the lining;substantially as described.

5. A receiving box for metal-scrap compressing machines, comprising astrong, heavy, metal base-box consisting of a twopart chilled steellining bound and completely enveloped by metal rings shrunk onto thelining, and an upper box portion made up oi castings of increasingstrength toward their lower ends, bolted together and fitted into thebase-box; substantially as described.

I11 testimony whereof I aflix my signature, in presence of twowitnesses.

JOHN DUNN.

Yl itnesses Grnonon GOULDING, HARRY N. LUKINS.

(Jopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. G.

